content: /*
   * Copyright 2016-present David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package hu.akarnokd.rxjava3.basetypes;
  
  import java.util.concurrent.TimeUnit;
  
  import org.reactivestreams.Subscriber;
  
  import hu.akarnokd.rxjava3.basetypes.SoloTimer.TimerSubscriber;
  import io.reactivex.rxjava3.core.Scheduler;
  import io.reactivex.rxjava3.disposables.Disposable;
  import io.reactivex.rxjava3.internal.disposables.DisposableHelper;
  
  /**
   * Signal a 0L after the specified time delay.
   */
  final class PerhapsTimer extends Perhaps<Long> {
  
      final long delay;
  
      final TimeUnit unit;
  
      final Scheduler scheduler;
  
      PerhapsTimer(long delay, TimeUnit unit, Scheduler scheduler) {
          this.delay = delay;
          this.unit = unit;
          this.scheduler = scheduler;
      }
  
      @Override
      protected void subscribeActual(Subscriber<? super Long> s) {
          TimerSubscriber parent = new TimerSubscriber(s);
          s.onSubscribe(parent);
  
          Disposable d = scheduler.scheduleDirect(parent, delay, unit);
          DisposableHelper.replace(parent.task, d);
      }
  }
  